The way Viagra works, is to better the flow of blood that runs around the body by making grow the amount of a protein known as phosphodiesterase 5 that is found in the penis and presses the arteries in that area. Nevertheless, this protein is also found in two other areas of the body, the lungs and the right ventricle of the heart. Pulmonary hypertension affects the blodd stream to the lungs, therefore constricting the arteries and stretching the right ventricle of the heart. It is alike in diagnosis to blood hypertension, but the additional work the heart has to do to pump the protein around the human body in the blood often causes weariness, shortness of breath and in extreme cases can bring about death of the patient. Having high blood pressure is easily manageable, and with the adequate medicine patients can increase their lifespan by more or less 20 years. However, if a patient suffers from pulmonary hypertension, their life is significantly decreased. In the most serious of cases, a patient may only have three years without the corresponding treatment, and this has a damaging result on their quality of life. No real testing was executed with this medical state, as it was hard to identify. Then, in 2002 experiment was executed on several patients who were suffering from this condition. ForegoingPreceding tests with other drugs was focused on healthy hearts, and did not get successful results because it was difficult to strengthen the correct ventricle in combination with decreasing blood pressure and unnerving the lungs. This study included giving patients controlled dosage of Viagra, and produced amazing outcome. Viagra was identified to be extremely successful in improving the heart function of patients who have a diseased right ventricle, and reduced the high pressure in their lungs. Because Viagra is a completely sure and plain medication that works with the chemical disbalance in the blood run, doctors at Glasgow’s Yorkhill Children’s Hospital gave this medication to infants who suffered from extreme pulmonary hypertension. The outcome was surprising. Many of these infants would not have survived without this implementation of Viagra, and the therapy has resulted in a breakthrough with making better patient treatmentmedicine. Viagra is also helpful in situations such as lung transplant surgery, where the right ventricle can often fail if the lung is rejected. Viagra is thought to be one of the most famous and successful therapy in cases such as erectile dysfunction, and now was proved a success in treating pulmonary hypertension. Widening the blood vessels and easing the breathing difficulties of the patient is a modern breakthrough. Because Viagra has no notable side effects, it can now be given to many patients of all age categories who suffer from various blood related illnesses.